laŭvice

Three pieces, and you can see every one of them.Laŭ is according to, vico is a row, a queue or a turn, and the final -e is the adverb ending. According to the turn: in turn, in rotation, one after another. The adjective laŭvica also exists and means next in order, so la laŭvica parolanto is the next speaker due.

Laŭ- is one of the most productive front elements in the language, and this is a good place to collect the family, because each member decodes the same way. Laŭdire is reportedly, according to what is said. Laŭvorta is literal, word for word. Laŭleĝa is lawful, according to the law. Laŭeble is as far as possible. Laŭvola is optional, according to the will. Laŭmoda is fashionable. Learn the pattern once and every one of them is free, which is the argument for Esperanto compressed into a single prefix.

Watch what vico is doing here. The noun carries both a spatial and a temporal sense, a row of things and a person's turn, and laŭvice uses the second. Mia vico is my turn; laŭvice is everybody taking theirs in order; and vicprezidanto, a vice-president, uses the same root in a third sense, as the deputy standing next in line, which is where the English vice- comes from too. The near neighbour unu post la alia, one after the other, says the same thing in four words, and laŭvice says it in one.